How to learn Grade 7: Science

Nebraska academic standards: Science, Grade 7

0 of 13 concepts ready to learn · Markdown, for your AI

1. History of Earth · Gather, analyze, and communicate evidence to explain Earth’s history.

1. Fossils as Evidence: Analyse and interpret data from fossils to provide evidence of organisms and environments that existed long ago
2. Life Changed Over Time: Recognise that living things have changed over time and that fossils provide information about organisms that inhabited the Earth millions of years ago

2. Earth’s Systems · Gather, analyze, and communicate evidence of the flow of energy and cycling of matter associated with Earth’s materials and processes.

1. Earth's Atmosphere & CO2: Describe the composition of Earth's atmosphere (mainly nitrogen and oxygen, with small amounts of CO₂ and other gases), explain how human activity increases CO₂, and describe the impact on global climate
2. Earth's atmosphere: Develop a model to describe ways the geosphere, biosphere, hydrosphere, and atmosphere interact as connected Earth systems
3. The Water Cycle: Describe the water cycle, tracing water through evaporation, condensation, precipitation, surface runoff, and transpiration in plants, explaining how the sun drives the cycle

3. Matter and Energy in Organisms and Ecosystems · Gather, analyze, and communicate evidence of the flow of energy and cycling of matter in organisms and ecosystems.

1. Matter Cycling in Ecosystems: Develop a model to describe the movement of matter among plants, animals, decomposers, and the environment in an ecosystem

4. Interdependent Relationships in Ecosystems · Gather, analyze, and communicate evidence of interdependent relationships in ecosystems.

1. Food Webs & Interdependence: Construct and interpret food webs showing the interdependence of organisms in an ecosystem, explaining how a change in one population affects others

5. Chemical Reactions · Gather, analyze, and communicate evidence of chemical reactions.

1. Physical vs Chemical Changes: Distinguish between physical changes (reversible, no new substances formed) and chemical changes (new substances formed, often irreversible), using conservation of mass to understand both types
2. Types of Chemical Reaction: Identify and describe four types of chemical reaction: combustion (burning in oxygen), oxidation (gain of oxygen), thermal decomposition (breaking down by heat), and displacement (more reactive metal replaces less reactive one)
3. Reactions That Release or Absorb Heat: Distinguish between exothermic reactions (release energy, temperature rises) and endothermic reactions (absorb energy, temperature falls), with everyday and industrial examples

6. Structure and Properties of Matter · Gather, analyze, and communicate evidence of the structure, properties, and interactions of matter.

1. Matter Is Made of Particles: Develop a model to describe that matter is made of particles too small to be seen, and that this explains properties of solids, liquids, and gases
2. Ceramics, Polymers & Composites: Describe the properties and uses of ceramics (hard, brittle, heat-resistant), polymers (flexible, lightweight, variable), and composites (combine properties of constituent materials), giving real-world examples of each
3. Atoms, Elements & Compounds: Explain the differences between atoms, elements, and compounds; describe the simple Bohr model of the atom (nucleus with protons and neutrons, electrons in shells); and write and interpret chemical symbols and simple formulae